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Characteristics of oxygen-blown gasification for combustible waste in a fixed-bed gasifier

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  • Na, Jae Ik
  • Park, So Jin
  • Kim, Yong Koo
  • Lee, Jae Goo
  • Kim, Jae Ho

Abstract

With increasing environmental considerations and stricter regulations, gasification of waste is considered to be a more attractive technology than conventional incineration for energy recovery as well as material recycling. The experiment for combustible waste mixed with plastic and cellulosic materials was performed in a fixed-bed gasifier to investigate the gasification behaviour with the operating conditions. Waste pelletized to a diameter of 2-3 cm and 5 cm length, was gasified in the temperature range 1100-1450 °C. The composition of H2 was in the range 30-40% and CO 15-30% depending upon the oxygen/waste ratio. Gasification of waste due to the thermoplastic property of the mixed-plastic melting and thermal cracking shows a prominent difference from that of coal or coke. It was desirable to maintain the top temperature at 400 °C to ensure the mass transfer and uniform reaction throughout the packed bed. As the bed height was increased, the formation of H2 and CO was increased, whilst the CO2 decreased by the char-CO2 reaction and plastic cracking. From the experimental results, the cold gas efficiency was around 61% and the heating values of product the gases were in the range of 2800-3200 kcal/Nm3.

Suggested Citation

  • Na, Jae Ik & Park, So Jin & Kim, Yong Koo & Lee, Jae Goo & Kim, Jae Ho, 2003. "Characteristics of oxygen-blown gasification for combustible waste in a fixed-bed gasifier," Applied Energy, Elsevier, vol. 75(3-4), pages 275-285, July.
    • Handle: RePEc:eee:appene:v:75:y:2003:i:3-4:p:275-285
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    Cited by:

    1. Chadwick, Dara T. & McDonnell, Kevin P. & Brennan, Liam P. & Fagan, Colette C. & Everard, Colm D., 2014. "Evaluation of infrared techniques for the assessment of biomass and biofuel quality parameters and conversion technology processes: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 30(C), pages 672-681.
    2. Igor Donskoy, 2023. "Particle Agglomeration of Biomass and Plastic Waste during Their Thermochemical Fixed-Bed Conversion," Energies, MDPI, vol. 16(12), pages 1-25, June.
    3. Kim, Young Doo & Yang, Chang Won & Kim, Beom Jong & Kim, Kwang Su & Lee, Jeung Woo & Moon, Ji Hong & Yang, Won & Yu, Tae U & Lee, Uen Do, 2013. "Air-blown gasification of woody biomass in a bubbling fluidized bed gasifier," Applied Energy, Elsevier, vol. 112(C), pages 414-420.
    4. Lou, Rui & Wu, Shu-bin, 2011. "Products properties from fast pyrolysis of enzymatic/mild acidolysis lignin," Applied Energy, Elsevier, vol. 88(1), pages 316-322, January.
    5. Santa Margarida Santos & Catarina Nobre & Paulo Brito & Margarida Gonçalves, 2023. "Brief Overview of Refuse-Derived Fuel Production and Energetic Valorization: Applied Technology and Main Challenges," Sustainability, MDPI, vol. 15(13), pages 1-22, June.
    6. Thanapal, Siva Sankar & Annamalai, Kalyan & Sweeten, John M. & Gordillo, Gerardo, 2012. "Fixed bed gasification of dairy biomass with enriched air mixture," Applied Energy, Elsevier, vol. 97(C), pages 525-531.
    7. Chen, Chih-Jung & Hung, Chen-I. & Chen, Wei-Hsin, 2012. "Numerical investigation on performance of coal gasification under various injection patterns in an entrained flow gasifier," Applied Energy, Elsevier, vol. 100(C), pages 218-228.
    8. Wiinikka, Henrik & Wennebro, Jonas & Gullberg, Marcus & Pettersson, Esbjörn & Weiland, Fredrik, 2017. "Pure oxygen fixed-bed gasification of wood under high temperature (>1000°C) freeboard conditions," Applied Energy, Elsevier, vol. 191(C), pages 153-162.

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